AK QD Sling Mount and Handstop: Small Parts Guide

The RC-QD is a front QD point that also bridges the MMS sling-loop cut and shields the hand from retainer heat. The HRD-EXT is a reversible handstop with three M-LOK slots; it fits our MMS handguards, and the product page says it fits any M-LOK handguard. The HG-RM is for lasers, because it gives a rigid base by removing free-float. The product page notes that removing free-float may affect long-range accuracy.

Parts in this post

• 
  HG-RM Rigid Mount
• 
  RC-QD Sling Mount
• 
  HRD Extended Hand Retention Device
• 
  MMS M-LOK Handguard
• 
  Wood AKM Gas Tube Cover
• 
  MMS 1913 Gas Tube
• 
  SFG Skeleton Forward Grip

What is a QD sling mount?

A quick-detach socket that a QD sling swivel locks into and releases from at the push of a button. The RC-QD puts one at the front of an M-LOK handguard, and the product page says it works with most QD swivels.

Which small parts go with an AK front end?

Three parts go with an MMS handguard:

• The HG-RM gives lasers and other zero-dependent devices a rigid base, and in doing so removes the handguard's free-float.
• The RC-QD adds a front QD point that shields the hand from retainer heat.
• The HRD-EXT gives the support hand a hard stop.

What does the HG-RM rigid mount do?

The HG-RM rigid mount is a rigid base for lasers and other zero-dependent devices on the MMS handguard. The MMS is free-float by design. The HG-RM deliberately removes that so a zero-dependent device stays put. The product page notes that removing free-float may affect long-range accuracy. It uses opposing M-LOK positions.

What does the RC-QD do?

The RC-QD-T is a reversible front QD sling point for M-LOK handguards that uses 1.5 M-LOK slots. On MMS handguards with a sling-loop cutout, it bridges the cut, which the product page says adds rigidity. It also shields the hand from heat off the retainer and sling loops, and works as a standoff against barricades. It is 7075-T6 with a Type 3 hardcoat, and the product page says it works with most QD swivels.

What does the HRD-EXT handstop do?

The HRD-EXT-T handstop gives the support hand a hard stop. It is reversible, uses three M-LOK slots and fits our MMS handguards, and the product page says it fits any M-LOK handguard. It is 7075-T6 with a Type 3 hardcoat.

What else is on our WASR-10 front end?

Our WASR-10 build pairs these with the 11.80" MMS handguard, the GTCW-AKM wood upper or the GT-AKM 1913 tube.

Small-parts fit table

The RC-QD-T is the tan finish of the RC-QD, and fit is identical. The HRD-EXT fits our MMS handguards, and its product page says it fits any M-LOK handguard, using three slots.

FAQ

What is a QD sling mount?

A quick-detach socket that a QD sling swivel locks into and releases from at the push of a button.

Does the HG-RM change how my handguard works?

Yes. It gives lasers a rigid base and removes the MMS free-float. It is for zero-dependent devices.

What does the RC-QD do besides hold a sling?

It bridges the MMS sling-loop cut, shields the hand from retainer heat, and works as a barricade standoff.

Does the HRD-EXT fit non-JMac handguards?

It fits our MMS handguards, and the product page says it fits any M-LOK handguard, using three slots.

Do these parts need an MMS handguard?

The HG-RM and RC-QD are built for MMS handguards. The HRD-EXT fits our MMS handguards, and the product page says it fits any M-LOK handguard.